Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 11:00

General

  • Target

    0aad80ed1112bc4b076d3623e3524cdb86d240560012f7737cbef2760604197d.exe

  • Size

    446KB

  • MD5

    a0cf730e2e2e90c865f4ee29c6cf777c

  • SHA1

    7c34b91ffeb98378f400cb9ac71e36f4024e7588

  • SHA256

    0aad80ed1112bc4b076d3623e3524cdb86d240560012f7737cbef2760604197d

  • SHA512

    d0a9f886d2f4f6382cb2b42267cc24e0f86f7fadd1af3daa63fb43882350749c61f71d84cb2a42f56d73b0e49128d39264fdd01d108eb3cb8b83d26127522b5b

  • SSDEEP

    6144:XzfmHVOoKSD5EBcLet20epWTY0JuaYmg8mUOzME5m7p/nb7zxzbcxLmK5aANCnnY:yHVKSZeJoWTFUhmg8mtzE7pb75wLbExY

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0aad80ed1112bc4b076d3623e3524cdb86d240560012f7737cbef2760604197d.exe
    "C:\Users\Admin\AppData\Local\Temp\0aad80ed1112bc4b076d3623e3524cdb86d240560012f7737cbef2760604197d.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1128
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:888
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1316
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1616
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:660
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1720
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1064
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1532
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1188
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1956
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:596
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1948

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e08c5abdf06785072340854c9bd36cd7

            SHA1

            e644b91d0d1aca5f6c949fd5f4a1a1ec327a70db

            SHA256

            1a309d7bf83a7b4ccf09d9890949eba82bb4a3ad703f06c363139af242781866

            SHA512

            a88be4299df6b85b965aa63e22e822b6d7450acf7a86c25ab8a2be73f1b095d91c361ec55850fa4ff5fe239181189adeaf34058c52bf58f8b9182a67d1d0498b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9ebe5352f89a76c29cc7dd0cb11e9047

            SHA1

            bfd71d45ec7b094174979fdc954a13e7935cc7f1

            SHA256

            7459a76ad0bf47e9e69ff998c7eea83b051f8828ac94e866934e0b5f8eec2457

            SHA512

            00a244b7da8b33b77945347670f1be146a1090bb9099cc15bd1d0d68a2d0fec6901a1e250ce0cdba0e703582978d70f6b6ea634e6f252c69522d9f627d3d3381

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            69257b2383686bc47b5b37f7146a5043

            SHA1

            3b4c174ae73d00d055ff8d5343a5defe9dfea490

            SHA256

            4bab9e8fd8604df0884f7999e9c11295b724f49d9685c2aa16c8651801ce8ab6

            SHA512

            3834e00e9a3060163911cdc28129b8df027b5ae42f665316a690ee5ce3067839478b42f5bc0b6ff9c36d2b33a2fc1bb88057f6ad93f53c239ae73e6443c8fff1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            751c3644602b71ac23ceafcc7e49cf9d

            SHA1

            cab202f0751a7d10a5deb75dcc5055ee0bf3102e

            SHA256

            aa0c68d02c37755843258c827b4e6cbcab29cf51f40af726ae1728d91330905d

            SHA512

            cc86aa8a17a66df3779cf9a93718e16533fb2f9526a9ced6b3e0d01d8cdaa8f4ce52eb4cf4c43c62761153ac109e00c3adfb89e8efd3b52fe3ee9b60aafba262

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            751c3644602b71ac23ceafcc7e49cf9d

            SHA1

            cab202f0751a7d10a5deb75dcc5055ee0bf3102e

            SHA256

            aa0c68d02c37755843258c827b4e6cbcab29cf51f40af726ae1728d91330905d

            SHA512

            cc86aa8a17a66df3779cf9a93718e16533fb2f9526a9ced6b3e0d01d8cdaa8f4ce52eb4cf4c43c62761153ac109e00c3adfb89e8efd3b52fe3ee9b60aafba262

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d80687ba4c32f8d2019bd7bd91c20eb5

            SHA1

            5bf5eb6c805b4d0c0a98594e9aa9156a5c1adb0d

            SHA256

            3e945f0380cb631fc489a69391bcf362625219a148f6714dc5b5f734b145f247

            SHA512

            12c9e673302de4fd5591772ac00ad6d9d12a501f2a1d75966a7e2d22953322d8fa00bfba6259f34d783fc738bebb3998048653a607a68f75739b4831efcd53eb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d80687ba4c32f8d2019bd7bd91c20eb5

            SHA1

            5bf5eb6c805b4d0c0a98594e9aa9156a5c1adb0d

            SHA256

            3e945f0380cb631fc489a69391bcf362625219a148f6714dc5b5f734b145f247

            SHA512

            12c9e673302de4fd5591772ac00ad6d9d12a501f2a1d75966a7e2d22953322d8fa00bfba6259f34d783fc738bebb3998048653a607a68f75739b4831efcd53eb

          • \Users\Admin\AppData\Local\Temp\nsyF06A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyF06A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF06A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF06A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF06A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e08c5abdf06785072340854c9bd36cd7

            SHA1

            e644b91d0d1aca5f6c949fd5f4a1a1ec327a70db

            SHA256

            1a309d7bf83a7b4ccf09d9890949eba82bb4a3ad703f06c363139af242781866

            SHA512

            a88be4299df6b85b965aa63e22e822b6d7450acf7a86c25ab8a2be73f1b095d91c361ec55850fa4ff5fe239181189adeaf34058c52bf58f8b9182a67d1d0498b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e08c5abdf06785072340854c9bd36cd7

            SHA1

            e644b91d0d1aca5f6c949fd5f4a1a1ec327a70db

            SHA256

            1a309d7bf83a7b4ccf09d9890949eba82bb4a3ad703f06c363139af242781866

            SHA512

            a88be4299df6b85b965aa63e22e822b6d7450acf7a86c25ab8a2be73f1b095d91c361ec55850fa4ff5fe239181189adeaf34058c52bf58f8b9182a67d1d0498b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e08c5abdf06785072340854c9bd36cd7

            SHA1

            e644b91d0d1aca5f6c949fd5f4a1a1ec327a70db

            SHA256

            1a309d7bf83a7b4ccf09d9890949eba82bb4a3ad703f06c363139af242781866

            SHA512

            a88be4299df6b85b965aa63e22e822b6d7450acf7a86c25ab8a2be73f1b095d91c361ec55850fa4ff5fe239181189adeaf34058c52bf58f8b9182a67d1d0498b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9ebe5352f89a76c29cc7dd0cb11e9047

            SHA1

            bfd71d45ec7b094174979fdc954a13e7935cc7f1

            SHA256

            7459a76ad0bf47e9e69ff998c7eea83b051f8828ac94e866934e0b5f8eec2457

            SHA512

            00a244b7da8b33b77945347670f1be146a1090bb9099cc15bd1d0d68a2d0fec6901a1e250ce0cdba0e703582978d70f6b6ea634e6f252c69522d9f627d3d3381

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9ebe5352f89a76c29cc7dd0cb11e9047

            SHA1

            bfd71d45ec7b094174979fdc954a13e7935cc7f1

            SHA256

            7459a76ad0bf47e9e69ff998c7eea83b051f8828ac94e866934e0b5f8eec2457

            SHA512

            00a244b7da8b33b77945347670f1be146a1090bb9099cc15bd1d0d68a2d0fec6901a1e250ce0cdba0e703582978d70f6b6ea634e6f252c69522d9f627d3d3381

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            69257b2383686bc47b5b37f7146a5043

            SHA1

            3b4c174ae73d00d055ff8d5343a5defe9dfea490

            SHA256

            4bab9e8fd8604df0884f7999e9c11295b724f49d9685c2aa16c8651801ce8ab6

            SHA512

            3834e00e9a3060163911cdc28129b8df027b5ae42f665316a690ee5ce3067839478b42f5bc0b6ff9c36d2b33a2fc1bb88057f6ad93f53c239ae73e6443c8fff1

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            751c3644602b71ac23ceafcc7e49cf9d

            SHA1

            cab202f0751a7d10a5deb75dcc5055ee0bf3102e

            SHA256

            aa0c68d02c37755843258c827b4e6cbcab29cf51f40af726ae1728d91330905d

            SHA512

            cc86aa8a17a66df3779cf9a93718e16533fb2f9526a9ced6b3e0d01d8cdaa8f4ce52eb4cf4c43c62761153ac109e00c3adfb89e8efd3b52fe3ee9b60aafba262

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d80687ba4c32f8d2019bd7bd91c20eb5

            SHA1

            5bf5eb6c805b4d0c0a98594e9aa9156a5c1adb0d

            SHA256

            3e945f0380cb631fc489a69391bcf362625219a148f6714dc5b5f734b145f247

            SHA512

            12c9e673302de4fd5591772ac00ad6d9d12a501f2a1d75966a7e2d22953322d8fa00bfba6259f34d783fc738bebb3998048653a607a68f75739b4831efcd53eb

          • memory/112-58-0x0000000000000000-mapping.dmp

          • memory/660-63-0x0000000000000000-mapping.dmp

          • memory/888-57-0x0000000000000000-mapping.dmp

          • memory/1064-75-0x0000000000000000-mapping.dmp

          • memory/1128-54-0x0000000076961000-0x0000000076963000-memory.dmp

            Filesize

            8KB

          • memory/1188-85-0x0000000000000000-mapping.dmp

          • memory/1316-60-0x0000000000000000-mapping.dmp

          • memory/1532-80-0x0000000000000000-mapping.dmp

          • memory/1616-61-0x0000000000000000-mapping.dmp

          • memory/1720-69-0x0000000000000000-mapping.dmp

          • memory/1956-86-0x0000000000000000-mapping.dmp

          • memory/2008-79-0x0000000000000000-mapping.dmp